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Finding the Fourth Proportional to 332.61, 459.06 and 280.11

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Solution

The fourth proportional to 332.61, 459.06 and 280.11 is: 386.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    332.61 : 459.06 = 280.11 : x
  2. Step 2: Convert to fraction form
    332.61/459.06 = 280.11/x
  3. Step 3: Cross multiply
    332.61x = 459.06 × 280.11
  4. Step 4: Simplify right side
    332.61x = 128,587.30
  5. Step 5: Solve for x
    x = 128,587.30/332.61
  6. Step 6: Final answer
    x = 386.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.